Sökning: "polymer solid interactions"

Visar resultat 1 - 5 av 52 avhandlingar innehållade orden polymer solid interactions.

  1. 1. Filler Controlled Morphology in Polymer Blends

    Författare :Anders L. Persson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; filled polymer blends; Lewis acid-base properties; co-continuous; rheokinetics; viscosity minimation; polymer solid interactions; crystallinity gradient;

    Sammanfattning : The morphology of a polymer blend can be altered very dramatically when a filler is added. Depending on the mutual interactions of the polymers and their individual interactions with the filler, many different filler distributions are possible. LÄS MER

  3. 2. Control of Structure of Filled Polymer Blends

    Författare :Claes Hammer; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; interactions; modelling; polypropylene; structure control; dynamic mechanical properties; filled polymer blends;

    Sammanfattning : This thesis deals with the control and analysis of the structure of filled immiscible polypropylene (PP) blends. The intention has also been to implement the knowledge gained in respect of commercially interesting systems as filled PP/(ethylene propylene copolymer (EP)) blends. LÄS MER

  4. 3. Polymer Ionic Materials: A Study of new Materials for Solid Polymer Fuel Cells and Rechargeable Polymer Batteries

    Författare :Britta Mattsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PPO; polystyrene; neutron scattering; poly propylene oxide ; PEO; polymer electrolytes; poly vinylidene fluoride ; poly ethylene oxide ; luminescence; Raman spectroscopy; proton conducting polymer; poly styrene sulfonic acid ; PVDF;

    Sammanfattning : Ion-containing polymeric materials are interesting for use in a wide variety of applications, where the flexible, yet mechanically stable, polymer matrix is essential. Intensive research is presently going on worldwide for applications as electrolytes in solid polymer batteries and fuel cells, where the ion-conducting polymer also serves as an electrode separator. LÄS MER

  5. 4. Van der Waals density-functional description of polymers and other sparse materials

    Författare :Jesper Kleis; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; softmatter; Density functional theory; polyethylene; van der Waals interaction; polymer crystal; nanotubes; DFT; sparse material systems; polymer interactions; polymer structure;

    Sammanfattning : Polymers are abundant in nature --- rubber, tar and latex have been known to mankind for thousands of years. Early in the 20th century, a systematic synthesis of polymers was developed, but the great potential of synthesized polymers was recognized first during World War II. LÄS MER

  7. 5. Relating the Bulk and Interface Structure of Hyaluronan to Physical Properties of Future Biomaterials

    Författare :Ida Berts; Jöns Hilborn; Adrian R Rennie; Giovanna Fragneto; John W White; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hyaluronan; structure; bulk; interface; small-angle neutron scattering; neutron reflection; hydrogel; grafting; nanoparticles; protein interactions;

    Sammanfattning : This dissertation describes a structural investigation of hyaluronan (HA) with neutron scattering techniques. HA is a natural biopolymer and one of the major components of the extracellular matrix, synovial fluid, and vitreous humor. LÄS MER